JP2015117467A - Spacer and shutter case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spacer and a shutter case capable of preventing fastening force for installing a shutter on an outer wall from being added to the outer wall.SOLUTION: The spacer of the present invention is a spacer 3 for a wall bracket 11 used when fixing the wall bracket 11 of the shutter case to an outer wall surface 93 of a building having a skeleton 91 of the building and an outer wall 92 provided outside the skeleton 91, inserted into a through-hole 921 bored in the outer wall 92 together with a fastening member 2 having a head part 21 positioned on the outer side more than a fastening part 111 of the outer wall 92 and the wall bracket 11 and a shaft part 22 screwed in the skeleton 91 and used so that one end is contacted with the skeleton 91 and the other end is contacted with the wall bracket 11, and comprises a first member 31 and a second member 32 variable in the total length by threadedly engaging one with the other and forming a hole 33 capable of penetrating the fastening member 2 through the center.

Description

  The present invention relates to a spacer used when attaching a shutter case to an outer wall surface of a building having a housing and an outer wall outside the housing, and a shutter case attached to the outer wall surface of the building using the spacer.

  When the shutter is attached to the outside of the building window, a shutter case is attached to the outer wall of the building with screws. In general, it is desirable that the screw is fastened to the building frame, and is attached to the outer wall so that the fastening force of the screw is not applied. Since the outer wall is not as strong as the housing, it is deformed when force is applied by screws, and depending on the type of outer wall material, there is a risk of cracking or cracking. In particular, when there is a space between the outer wall and the housing, it is difficult to complete the fastening so as not to press the outer wall toward the housing.

  By the way, Patent Document 1 discloses a structure in which the shutter load is dispersed and the shutter is stably supported on the outer wall W around the window frame 1 of the building. In the side bracket 11 of the shutter of Patent Document 1, the rear end portion is hooked to the hook metal fitting 14 fixed to the outer wall W by three coach screws 34, and the bent portion 11a is bent with respect to the support metal fitting 15 attached to the vertical frame. Is screwed.

  Patent Document 2 discloses a structure in which two resin members 2 and 4 are fixed to a vehicle body panel 7 with bolts 6 through a metal collar 9. Through holes 8 are respectively formed in the resin members 2 and 4 of Patent Document 2, and a metal collar 9 is attached to the through holes 8. Since the bolt 6 is inserted into the metal collar 9 and screwed into the nut 10 fixed to the vehicle body panel 7, the fastening force by the bolt 6 is not applied to the resin members 2 and 4, and the deformation of the resin members 2 and 4 Generation of cracks and the like can be prevented.

  For example, by combining the structure supporting the shutter disclosed in Patent Document 1 and the metal collar 9 disclosed in Patent Document 2, the shutter can be attached to a building having a space between the outer wall and the housing. However, the thickness of the outer wall and the length of the space between the outer wall and the frame differ depending on the building, and even the same building is slightly different and is not always constant. Therefore, when the length of the metal collar 9 is short, there is a fear that a screw fastening force is applied to the outer wall. When the metal collars 9 are prepared in various lengths instead of one, the work at the site becomes complicated, and a large number of metal collars 9 that may not be used are carried.

Japanese Patent No. 3238848 Japanese Patent No. 4407877

  The present invention has been made in view of the above situation, and is not affected by the length from the outer wall surface to the housing, and can prevent a fastening force for attaching the shutter to the outer wall from being applied to the outer wall. Providing a shutter case is an issue to be solved.

(1) A structural feature of the spacer for solving the above-described problem is that a wall bracket of a shutter case is fixed to the outer wall surface of a building having a building frame and an outer wall provided outside the frame. Used,
Inserted into a through-hole drilled in the outer wall together with a fastening member comprising a head located outside the fastening portion of the outer wall and the wall bracket and a shaft portion screwed into the housing;
A spacer for a wall bracket used so that one end is in contact with the housing and the other end is in contact with the wall bracket,
One is screwed to the other and the total length is variable, and the first and second members are formed with holes through which the shaft portion of the fastening member can penetrate.

  The invention of the above (1) can be adopted by arbitrarily adding one or more of the configurations of (2) to (6) described below.

  (2) Of the first and second members, the one end in contact with the housing includes a rotation preventing portion having a high frictional force.

  (3) Of the first and second members, an engagement groove that can be engaged with a screw driver is provided at the other end.

  (4) A shrinkage suppression unit that suppresses shrinkage of the length between both ends in the full length direction is provided.

  (5) The threaded portion between the first and second members has a limiting means for limiting relative rotation.

  (6) The total length of the threaded portion between the first and second members is shortened when rotating in the direction opposite to the rotational direction when the shaft portion of the fastening member is screwed.

  (7) A structural feature of the shutter case for solving the above-described problem is that the shutter case includes the wall bracket, the fastening member, and the spacer according to any one of (1) to (6). is there.

  The spacer of the invention of (1) has a first member and a second member to be screwed together, and is inserted into a through hole formed in the outer wall, and a shaft portion of a fastening member for fixing the wall bracket to the outer wall passes through the center. Holes are formed. Since the first member and the second member are screwed together, the overall length can be varied. Therefore, according to the invention of (1), since the total length can be varied according to the thickness of the outer wall and the length of the space from the outer wall to the housing, the fastening force by the fastening member for fixing the shutter case is applied to the outer wall. Can be prevented. That is, the shutter can be attached to the outer wall without being affected by the length from the outer wall surface to the housing.

  In the invention of (2), when the total length is changed after being inserted into the through-hole formed in the outer wall, the portion in contact with the housing has the detent portion having a high frictional force. It can be prevented from turning and the total length is easy to change.

  In the invention of (3), since the engagement groove that can be engaged with the screw driver is provided, the total length can be easily changed even after the spacer is inserted into the through hole formed in the outer wall.

  In the invention of (4), since the shrinkage suppression portion that suppresses the shrinkage between the lengths of the both end portions in the full length direction is provided, the spacer is inserted after fastening with the fastening member or after the shutter case is attached to the outer wall. It can suppress shrinking.

  In the invention of (5), since the threaded portion between the first and second members has a limiting means for limiting relative rotation, the spacer is used when fastening with the fastening member or after the shutter case is attached to the outer wall. Can be restricted from shrinking.

  In the invention of (6), the total length is shortened when the threaded portion between the first and second members rotates in the direction opposite to the rotational direction when the shaft portion of the fastening member is screwed. The total length does not shorten when rotating in the direction. That is, the spacer does not contract during fastening with the fastening member.

  In the invention of (7), since the spacer having a variable overall length is provided, it is possible to suppress the fastening force when the wall bracket is fixed to the outer wall from being applied to the outer wall, and the shutter case can be stably attached to the outer wall via the wall bracket. Can be attached.

It is a partial cross section figure which shows the structure by which the shutter case of Embodiment 1 is attached to the outer wall. 3 is an enlarged cross-sectional view of a main part of the shutter case of Embodiment 1. FIG. It is a perspective view of the spacer used for fixing the wall bracket of the shutter case of Embodiment 2 to the outer wall surface. 6 is an enlarged cross-sectional view of a main part of a shutter case according to Embodiment 2. FIG. 6 is an enlarged cross-sectional view of a main part of a shutter case of Embodiment 3. FIG.

  A representative embodiment of the present invention will be described with reference to FIGS. 1 to 5 are illustrated for easy explanation of the invention, the relationship of the size of each individual member is not necessarily the same as the actual one, and the scale and ratio are not limited to those illustrated.

  As shown in FIG. 1, the shutter case 1 according to the present embodiment is attached to an outer wall surface 93 of a building having a reinforcing bar casing 91 and a concrete outer wall 92 provided outside the casing 91. In addition, the material of the housing 91 and the outer wall 92 is not limited to reinforcing steel or concrete. The thickness of the outer wall 92 is t, and the gap between the housing 91 and the outer wall 92 is d.

(Embodiment 1)
As shown in FIG. 1, the shutter case 1 of Embodiment 1 includes a wall bracket 11, a pair of lateral brackets 12, a front case 13, a drilling screw (fastening member) 2, and a spacer 3.

  In the shutter case 1, the wall bracket 11 is fixed to the housing 91 of the building by the drilling screw 2, and then the horizontal brackets 12 arranged one by one on the left and right are held and fixed to the wall bracket 11. Between the pair of horizontal brackets 12, a shutter winding shaft 14, a drive motor (not shown), and the like are attached in advance. And the front case 13 is attached.

  In the wall bracket 11, as shown in FIG. 2, a hole 112 through which the shaft portion 22 of the drilling screw 2 passes is formed in a fastening portion 111 with which a head portion 21 of the drilling screw 2 described later contacts. A through hole 921 into which the drilling screw 2 and the spacer 3 are inserted is formed in the outer wall 92. The size of the through-hole 921 only needs to be larger than that of the spacer 3, and it is not necessary to have an accuracy with which the spacer 3 comes into close contact.

  The drilling screw 2 includes a head portion 21 located outside the outer wall 92 and the fastening portion 111 of the wall bracket 11, and a shaft portion 22 inserted into a through hole 921 formed in the outer wall 92. The shaft portion 22 is positioned opposite to the head portion 21, and a tip 221 penetrating the housing 91 is a drill blade.

  The spacer 3 is a cylindrical member, has a first member 31 and a second member 32, and is inserted into a through-hole 921 formed in the outer wall 92 before the drilling screw 2. The first member 31 and the second member 32 have a hole 33 penetrating inside, and the shaft portion 22 of the drilling screw 2 passes through the hole 33. The first member 31 includes a head 311 that abuts against the wall bracket 11, and a male screw portion 312 that extends from the head toward the housing 91 and has a screw groove formed on the outer periphery thereof that is smaller than the outer diameter of the head 311. And have. The second member 32 has a head portion 321 that abuts the housing 91, and extends from the head portion 321 toward the wall bracket 11, and a screw groove is formed on the inner circumference that is larger than the inner circumference diameter of the head portion 321. 322.

  The first member 31 and the second member 32 are configured such that the male screw portion 312 of the first member 31 is positioned on the inner periphery of the female screw portion 322 of the second member 32 and the screw portion 312 and the female screw portion 322 are screwed together. And the hole 33 is formed in the inside. In the spacer 3, the head 311 of the first member 31 and the head 321 of the second member 32 are relatively moved, and the length L between both ends of the spacer 3 can be varied. Since it is desirable that the shaft portion 22 of the drilling screw 2 does not contact the hole 33, the inner diameter is larger than the outer diameter of the shaft portion 22 of the drilling screw 2.

  In the spacer 3, a spring 36 that expands and contracts in the axial direction of the spacer 3 is compressed between the male thread 312 of the first member 31 and the head 321 of the second member 32. Since the first member 31 and the second member 32 are pressed in the direction in which the spacer 3 is expanded in the axial direction, the spacer 3 is suppressed from shortening the total length L.

  Next, a method for attaching the wall bracket 11 to the outer wall surface 93 will be described. First, the length from the outer wall surface 93 to the casing 91 is measured, and the length L of the spacer 3 is set to that length. The length L of the spacer 3 is set to be equal to or longer than the sum of the thickness t of the outer wall 92 and the gap d between the housing 91 and the outer wall 92 (L ≧ (t + d)). Then, the spacer 3 whose length is adjusted is inserted into the through hole 921 of the outer wall 92. Next, the wall bracket is disposed on the outer wall surface 93 with the hole 112 of the wall bracket 11 aligned with the through hole 921. The shaft portion 22 of the drilling screw 2 is inserted from the hole 112 of the outer wall bracket 11, and the shaft portion 22 is further inserted into the hole 33 of the spacer 3. When the tip 221 of the shaft portion 22 comes into contact with the housing 91, the tip 221 of the drilling screw 2 is screwed into the housing 91, and the drilling screw 2 is fastened to the housing 91. Thus, the wall bracket 11 is fixed to the outer wall 92, and the shutter case 1 is attached to the outer wall 92 by attaching the lateral bracket 12 and the front case 13. Although one spacer 3 is used for one drilling screw 2, a configuration in which two or more drilling screws 2 are used for a larger spacer 3 can also be adopted. In that case, it is desirable that the drilling screws 2 are close to each other. Further, one or more drilling screws 2 and spacers 3 are used to fix the wall bracket 11, and there are no restrictions on the number of each used, but the number of drilling screws 2 required to hold the shutter case 1 is the same. desirable.

  According to the shutter case 1 and the spacer 3 of the first embodiment, since the total length of the spacer 3 can be varied, the thickness t of the outer wall 92 and the length d of the space between the casing 91 and the outer wall 92 are different at the place to be fastened. However, the fastening force for fixing the wall bracket 11 can be prevented from being applied to the outer wall 92. Therefore, the shutter can be attached to the outer wall 92 without being affected by the length from the outer wall surface 93 to the casing 91.

  Further, since the spacer 3 is pressed by the spring 36 in the direction of expanding in the axial direction, the overall length L is prevented from being shortened, and the adjusted length can be maintained. Therefore, it is difficult to shorten the spacer 3 when fastening with the drilling screw 2 or after the shutter case 1 is attached to the outer wall 92, and it is possible to prevent the fastening force from being applied to the outer wall 92.

(Embodiment 2)
The shutter case of the second embodiment has the same basic configuration and operation effects as the shutter case 1 of the first embodiment. Below, it demonstrates focusing on a different structure.

  The shutter case of Embodiment 2 has a spacer 4 shown in FIGS. The first member 41 of the spacer 4 has an engagement groove 44 formed on the side of the head 411 that contacts the wall bracket 11. The spacer 4 has a detent 45 on the side of the head 421 of the second member 42 that contacts the housing 91. The rest of the configuration is the same as that of the spacer 3 of the first embodiment, and a description thereof will be omitted.

  The engagement groove 44 is formed so as to equally divide the tip portion of the head portion 411 (the side abutting against the wall bracket 11) in the radial direction and can be engaged with a minus driver (screw driver). .

  The anti-rotation portion 45 is located between the head portion 421 and the housing 91 at the front end portion of the head portion 421 (the side abutting on the housing 91), is made of a resin and has a cap shape, and the front end of the head portion 421. It is fitted to the part.

  According to the shutter case and the spacer 4 of the second embodiment, even after the spacer 4 is inserted into the through hole 921 of the outer wall 92, the total length L of the spacer 4 can be varied with a flat-blade screwdriver or the like. At that time, since the anti-rotation portion 45 having a high frictional force is attached between the second member 42 and the casing 91, the second member 42 is difficult to rotate simultaneously with the first member 41, and the total length L of the spacer 4 is increased. Easy to adjust.

(Embodiment 3)
The shutter case of the third embodiment has the same basic configuration and operation effects as the shutter case 1 of the first embodiment. Below, it demonstrates focusing on a different structure.

  The shutter case of Embodiment 3 has a spacer 5 shown in FIG. The spacer 5 has a resin-made restricting means 57 at the threaded portion of the external thread portion 512 and the internal thread portion 522 where the first member 51 and the second member 52 are threadably engaged. The restricting means 57 has a ring shape and is attached to the thread groove (inner diameter side) of the external thread part 512 or the thread groove (outer diameter side) of the female thread part 522.

  According to the shutter case and the spacer 4 of the third embodiment, the total length L of the spacer 5 is limited by the resin-made limiting means 57 having a high frictional force attached to the screwed portion between the first member 51 and the second member 52 of the spacer 5. Since it is difficult to change, the adjusted length can be maintained. Therefore, the spacer 5 is unlikely to contract even when fastening with the drilling screw 2 or after the shutter case 1 is attached to the outer wall 92, and it is possible to prevent the fastening force from being applied to the outer wall 92.

(Embodiment 4)
The shutter case of the fourth embodiment has the same configuration and operational effects as the shutter case 1 of the first embodiment. Below, it demonstrates focusing on a different structure.

  The shutter case of Embodiment 4 has a spacer in which the first member and the second member are screwed in reverse. By adopting a spacer that is screwed with a reverse screw, when the shaft portion 22 of the drilling screw 2 is screwed into the housing 91, the total length of the spacer is not shortened even if a force in the rotational direction is applied to the spacer.

(Other embodiments)
The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, the spacer is not limited to a cylinder, and if the cross section perpendicular to the axis of the first thread and the female thread of the second member can be screwed in a circular shape, the cross section perpendicular to the outer and inner axes can be obtained. A shape such as a rectangle or an ellipse can also be adopted. If the through hole 921 of the outer wall 92 is rectangular, the outer shape of the spacer is rectangular, and the length L of the entire length is adjusted at a position where the planes (corners) of the first member and the second member are aligned, the first member and the second member Therefore, the effect of preventing the overall length L from being shortened can be expected. Further, as long as it can be inserted into the through hole 921 of the outer wall 92, the size and shape in the direction perpendicular to the axis need not be constant.

  The anti-rotation portion 45 is not limited to resin, and the cap shape is not limited. It is desirable that the frictional force of the portion in contact with the housing 91 is high, and the second member 42 may be configured to be fixed by an adhesive. Alternatively, an adhesive can be used as the rotation stopper 45. Adhesive is used as the anti-rotation part 45, and the adhesive is applied to the through-hole 921 of the outer wall 92 before insertion. After the adhesive is fixed, the total length L of the spacer is adjusted with a flat-blade screwdriver, or fastening with a fastening member Or

  In addition, the limiting means 57 of the spacer 5 of Embodiment 3 is not limited to a ring-shaped resin member having a high frictional force. For example, the structure which apply | coats highly adhesive grease and an adhesive material to the screwing part of the 1st member 51 and the 2nd member 52 is employable. When an adhesive is employed, the first member 51 and the second member 52 are screwed together after being applied to the screwing portion when inserted into the through hole 921 of the outer wall 92. Moreover, the shrinkage | contraction suppression part and restriction | limiting means which make it difficult to shorten a spacer in an axial direction are not limited to one in one spacer, A plurality can be used.

DESCRIPTION OF SYMBOLS 1 ... Shutter case 11 ... Wall bracket 111 ... Fastening part 112 ... Hole 12 ... Horizontal bracket 13 ... Front case 14 ... Winding shaft 2 ... Drilling screw (fastening) 21) Head 22 ... Shaft 221 ... Tip 3, 4, 5 ... Spacer 31, 41, 51 ... First member 311 411 511 ... Head 312 , 512, male thread portion 32, 42, 52 ... second member 321, 421, 521 ... head 322, 422, 522 ... female thread portion 33, 43, 53 ... Hole 36 ... Spring 44 ... Engagement groove 45 ... Anti-rotation part 57 ... Limiting means 91 ... Housing 92 ... Outer wall 93 Outer wall surface

Claims (7)

Used when fixing a wall bracket of a shutter case to the outer wall surface of a building having a building frame and an outer wall provided on the outside of the frame;
Inserted into a through-hole drilled in the outer wall together with a fastening member comprising a head located outside the fastening portion of the outer wall and the wall bracket and a shaft portion screwed into the housing;
A spacer for a wall bracket used so that one end is in contact with the housing and the other end is in contact with the wall bracket,
A spacer having first and second members in which one is screwed to the other and the total length is variable, and a hole through which the shaft portion of the fastening member can penetrate is formed in the center.   The spacer according to claim 1, wherein, of the first and second members, the one end in contact with the housing includes a detent portion having a high frictional force.   The spacer according to claim 1 or 2, further comprising an engagement groove that can be engaged with a screw driver at the other end of the first and second members.   The spacer of any one of Claims 1-3 provided with the shrinkage | contraction suppression part which suppresses that the length between both ends shrink | contracts in a full length direction.   The spacer according to any one of claims 1 to 4, wherein a screwing portion between the first and second members has a limiting means for limiting relative rotation.   The threaded portion between the first and second members has a total length that is shortened when rotating in a direction opposite to the rotation direction when the shaft portion of the fastening member is screwed. The spacer according to item 1.   The shutter case which has the said wall bracket, the said fastening member, and the spacer of any one of Claims 1-6.

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